1 In the wrist, inflammation of the tissue around the tendons that extend or straighten the wrist and fingers. In the past, the condition was treated with injections, ointments, and splints. A newer treatment uses a small operation, which relieves symptoms and allows resumption of activity within days.
2 In the foot, localized swelling of the extensor tendons at the front (anterior) of the ankle. It is usually caused by unaccustomed, intensive distance running or from overtight lacing of running shoes. It is characterized by pain when the foot or toes are passively pointed downwards away from the shin, or when they move towards the shin against a resistance. Treatment includes application of anti-inflammatories and reduction of mechanical stress. In chronic cases, it may be necessary to release the tendons surgically.